/*
 * Tencent is pleased to support the open source community by making BK-CI 蓝鲸持续集成平台 available.
 *
 * Copyright (C) 2019 THL A29 Limited, a Tencent company.  All rights reserved.
 *
 * BK-CI 蓝鲸持续集成平台 is licensed under the MIT license.
 *
 * A copy of the MIT License is included in this file.
 *
 *
 * Terms of the MIT License:
 * ---------------------------------------------------
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of
 * the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 * LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
 * NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package com.tencent.devops.websocket.configuration

import com.tencent.devops.common.redis.RedisOperation
import com.tencent.devops.websocket.handler.BKHandshakeInterceptor
import com.tencent.devops.websocket.handler.SessionWebSocketHandlerDecoratorFactory
import com.tencent.devops.websocket.servcie.WebsocketService
import org.slf4j.LoggerFactory
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.beans.factory.annotation.Value
import org.springframework.context.annotation.Bean
import org.springframework.context.annotation.Configuration
import org.springframework.messaging.simp.config.ChannelRegistration
import org.springframework.messaging.simp.config.MessageBrokerRegistry
import org.springframework.web.socket.config.annotation.AbstractWebSocketMessageBrokerConfigurer
import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker
import org.springframework.web.socket.config.annotation.StompEndpointRegistry
import org.springframework.web.socket.config.annotation.WebSocketTransportRegistration

@Suppress("ALL")
@Configuration
@EnableWebSocketMessageBroker
class WebSocketConfig @Autowired constructor(
    private val bkHandshake: BKHandshakeInterceptor,
    private val websocketService: WebsocketService,
    private val redisOperation: RedisOperation
) : AbstractWebSocketMessageBrokerConfigurer() {

    @Value("\${thread.min:8}")
    private val min: Int = 8

    @Value("\${ws.cacheLimit:3600}")
    private val cacheLimit: Int = 3600

    companion object {
        private val logger = LoggerFactory.getLogger(WebSocketConfig::class.java)
    }

    override fun configureMessageBroker(config: MessageBrokerRegistry) {
        config.setCacheLimit(cacheLimit)
        config.enableSimpleBroker("/topic")
        config.setApplicationDestinationPrefixes("/app")
    }

    override fun registerStompEndpoints(registry: StompEndpointRegistry) {
        registry.addEndpoint("/ws/user", "/ws/desktop")
            .addInterceptors(bkHandshake)
            .setAllowedOriginPatterns("*")
            .withSockJS()
    }

    @Override
    override fun configureClientInboundChannel(registration: ChannelRegistration) {
        var defaultCorePoolSize = min
        if (defaultCorePoolSize < Runtime.getRuntime().availableProcessors() * 2) {
            defaultCorePoolSize = Runtime.getRuntime().availableProcessors() * 2
        }
        registration.taskExecutor().corePoolSize(defaultCorePoolSize)
            .maxPoolSize(defaultCorePoolSize * 2)
            .keepAliveSeconds(60)
    }

    @Override
    override fun configureClientOutboundChannel(registration: ChannelRegistration) {
        var defaultCorePoolSize = min
        if (defaultCorePoolSize < Runtime.getRuntime().availableProcessors() * 2) {
            defaultCorePoolSize = Runtime.getRuntime().availableProcessors() * 2
        }
        registration.taskExecutor().corePoolSize(defaultCorePoolSize).maxPoolSize(defaultCorePoolSize * 2)
    }

    override fun configureWebSocketTransport(registration: WebSocketTransportRegistration) {
        registration.addDecoratorFactory(wsHandlerDecoratorFactory())
        super.configureWebSocketTransport(registration)
    }

    @Bean
    fun wsHandlerDecoratorFactory(): SessionWebSocketHandlerDecoratorFactory {
        return SessionWebSocketHandlerDecoratorFactory(websocketService, redisOperation)
    }
}
